Not sure what happened. I was careful to keep it nice and swampy (RH in the tent was already 40-50% plus I had the seedling covered for a week). I imagine the pH was about 6.5, since it was straight distilled water. I put some nutes in a few days ago, and adjusted the pH to 5.7. I am not sure if pH matters if its just pure water, since the plant doesn't have any nutes to take up anyway.
Still pretty disappointing. The last one from this batch of seed netted 100 g dry. and I mean REALLY dry. Giving the last two beans to my sister, since that's the only strain she wants to grow.